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Accumulated Other Comprehensive Income (Loss)
 9 Months Ended
Sep. 30, 2025
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)
Information regarding accumulated other comprehensive income (loss) for the nine months ended September 30, 2025 and 2024 is as follows:
Accumulated Other Comprehensive Income (Loss)
PNMCorporate and Other
TXNM
Unrealized
Gains on
Available-for-Sale Debt
Securities		Pension
Liability
Adjustment		Fair Value
Adjustment
for Cash
Flow Hedges
TotalTotal
(In thousands)
Balance at December 31, 2024
$214 $(75,922)$(75,708)$— $(75,708)
Amounts reclassified from AOCI (pre-tax)
(611)4,123 3,512 — 3,512 
Income tax impact of amounts reclassified
155 (1,047)(892)— (892)
Other OCI changes (pre-tax)
645 — 645 (1,538)(893)
Income tax impact of other OCI changes
(164)— (164)391 227 
Net after-tax change
25 3,076 3,101 (1,147)1,954 
Balance at September 30, 2025$239 $(72,846)$(72,607)$(1,147)$(73,754)

Balance at December 31, 2023
$10,652 $(77,157)$(66,505)$3,665 $(62,840)
 Amounts reclassified from AOCI (pre-tax)
(12,932)3,649 (9,283)8,456 (827)
Income tax impact of amounts reclassified
3,285 (927)2,358 (2,148)210 
 Other OCI changes (pre-tax)
362 — 362 (13,689)(13,327)
Income tax impact of other OCI changes
(92)— (92)3,477 3,385 
Net after-tax change
(9,377)2,722 (6,655)(3,904)(10,559)
Balance at September 30, 2024$1,275 $(74,435)$(73,160)$(239)$(73,399)

The Condensed Consolidated Statements of Earnings include pre-tax amounts reclassified from AOCI related to Unrealized Gains on Available-for-Sale Debt Securities in gains on investment securities and Fair Value Adjustment for Cash Flow Hedges in interest charges. The income tax impacts of all amounts reclassified from AOCI are included in income taxes in the Condensed Consolidated Statements of Earnings.